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Commitments and Contingencies - Additional Information (Detail) |  | 12 Months Ended
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Feb. 29, 2008 Time | Dec. 31, 2017 USD ($)
Commitments And Contingencies [Line Items] |  |
Lease expiration date | Feb. 28, 2019 |
Number of times lease can be renewed | Time | 6 |
Lease renewal period | 5 years |
Lease amendment description |  | In May 2017, the Company entered into an amendment to the lease to, among other things, extend the primary lease term, and consequently the construction deadline, to a date between February 29, 2020 and June 30, 2020
Non refundable payment |  | $ 40,000
Purchase the premises |  | $ 4,500,000
Due diligence expiration date |  | Mar. 02, 2018
Escrow deposit to purchase the property |  | $ 300,000
Sale agreement termination, date |  | November 27, 2020
Additional Amendment Lease Agreement [Member] |  |
Commitments And Contingencies [Line Items] |  |
Lease amendment description |  | In November 2017, the Company entered into an additional amendment to the lease concurrently with entering into a purchase and sale agreement.

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- Definition Commitments and contingencies. + References No definition available. + Details
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- Definition Due diligence expiration date. + References No definition available. + Details
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- Definition Lease amendment description. + References No definition available. + Details
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- Definition Lease renewal period. + References No definition available. + Details
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- Definition Non refundable payment. + References No definition available. + Details
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- Definition Number of lease renewals allowed. + References No definition available. + Details
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- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
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- Definition The date of the transaction involving the sale of the property to another party and the lease of the property back to the seller. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77913982&loc=d3e50796-112755 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 40 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77888430&loc=SL77919786-209982 + Details
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- Details
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